<!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<form action="demo" method="post">
	{{ csrf_field() }}
  <div class="form-group">
    <label for="exampleInputEmail1">用户名</label>
    <input type="text" class="form-control" name="name" placeholder="请输入用户名">
  </div>
  <div class="form-group">
    <label for="exampleInputPassword1">密码</label>
    <input type="password" class="form-control" placeholder="请输入密码">
  </div>
  <button type="submit" class="btn btn-default">登录</button>
</form>